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1-Wire Soil Moisture

Model: Soil Moisture Sensor with Moisture Meter Board.
Purpose: Measures Leaf Wetness
Purchased from: www.hobby-boards.com
Details: The Watermark Soil Moisture sensor (granular matrix sensor) is an indirect method of measuring soil water. It is an electrical resistance type sensor read by the Moisture Meter Board which interfaces to the 1-Wire network.
Features:
  • Fully solid state
  • Will not dissolve in soil
  • Not affected by freezing temperatures
  • Internal compensation for commonly found salinity levels
  • Easy to use
  • No maintenance
To Install the Soil Moisture meter you must soak and dry it 3 times, This takes 24 hours for each cycle.
When the sensor is finally installed it must be installed wet. Pour a large container of water in the hole.
This ensures that the soil particles have good contact with the sensor.
 
Sensor Soaking in water
Soil Moisture Install - soaking in water
 
Hole dug in the soil for the Sensor
Soil Moisture - Hole dug in the soil
 
Watermark sensor in the hole in the ground ready to be filled up
Soil Moisture - Watermark sensor in the hole in the ground ready to be filled up
 
Watermark sensor in the hole filled with a large container of water
Soil Moisture - Watermark sensor in the hole filled with a large container of water
 
Hole filled and sensor buried.
The soil underneath should be as wet as possible to get the best contact with the sensor.
Soil Moisture - Hole filled and sensor buried
 
Sensor buried with only the cables showing.
Soil Moisture - Sensor buried with only the cables showing
 
The white box houses the Moisture Meter boards which is used to interface with the 1-Wire network.
Soil Moisture - The white box houses the Moisture Meter boards which is used to interface with the 1-Wire network